We study biomechanical, behavioral, physiological and ecological aspects of flight in birds, bats and insects. One main avenue of research is of bird migration, focusing on stopover behavior and eco-physiology, as well as environmental effects on cross-country flight at multiple temporal and spatial scales. We make use of the ATLAS system (see http://move-ecol-minerva.huji.ac.il/page/3) to study animal movement at the Hula Valley in NE Israel and use other tracking devices to study movement at a global scale. In addition, we continue our work on commuting flight in bats and also explore flight kinematics during foraging movements. We are currently developing a research framework investigating the effects of wing morphology on flight performance.